Roberto, a drummer in a rock band, keeps receiving weird phone calls and being followed by a mysterious man. One night he manages to catch up with his persecutor and tries to get him to talk but in the ensuing struggle he accidentally stabs him. He runs away, but he understands his troubles have just begun when the following day he receives an envelope with photos of him killing the man. Someone is killing all his friends and trying to frame him for the murders.
An 18th century African prince is turned into a vampire while visiting Transylvania. Two centuries later, he rises from his coffin attacking various residents of Los Angeles and meets Tina, a woman who he believes is the reincarnation of his deceased wife.
Investigating the mysterious deaths of a number of farm animals, vet Rack Hansen discovers that his town lies in the path of hordes of migrating tarantulas. Before he can take action, the streets are overrun by killer spiders, trapping a small group of townsfolk in a remote hotel.
After a spate of murders, the villagers of Schtettel kill the depraved perpetrator, Count Mitterhouse. Fifteen years later the Circus of Nights appeared in the plague-ridden village and its performers include Mitterhouse's mistress, children and cousins. They have come to Schtettel to fulfil the Count's last words, an evil, vicious curse of death and destruction on those who participated in his impaling. The children of Schtettel become the targets for a brutal and devastating revenge as the Vampire Circus rehearses for its most deadly performance.
A quadriplegic man is given a trained monkey help him with every day activities, until the little monkey begins to develop feelings, and rage, against its new master and those who get too close to him.
While holidaying in Ireland, a pregnant children's author finds her mental state becoming increasingly unstable, resulting in paranoia, hallucinations, and visions of a doppelgänger.
After undergoing radical surgery for injuries from a motorcycle accident, a young woman develops a strange phallic growth on her body and a thirst for human blood—the only nourishment that will now sustain her.
Citizens of a small town are infected by a biological weapon that causes its victims to become violently insane. As uninfected citizens struggle to survive, the military readies its own response.
After a new cannery introduces scientifically augmented salmon to a seaside town in the Pacific Northwest, a species of mysterious, mutated sea creatures begin killing the men and raping the women.
A young girl, with an amazing ability to communicate with insects, is transferred to an exclusive Swiss boarding school, where her unusual capability might help solve a string of murders.
Wealthy slacker college student Mark, his new girlfriend Sarah, and their friends are invited to a special showing at a mysterious wax museum which displays 18 of the most evil men of all time. After his ex-girlfriend and another friend disappear, Mark becomes suspicious.
A man tries to uncover an unconventional psychologist's therapy techniques on his institutionalized wife, while a series of brutal attacks committed by a brood of mutant children coincides with the husband's investigation.
A group of teenagers that work at the mall all get together for a late night party in one of the stores. When the mall goes on lock down before they can get out, the robot security system activates after a malfunction and goes on a killing spree. One by one the three bots try to rid the mall of the “intruders.” The only weapons the kids can use are the supplies in other stores, or if they can make it till morning when the mall opens back up.
As a lone spaceship proceeds on its long voyage across space, the crew are surprised to encounter a strange pyramid form. Surprise turns to horror as one by one, they discover that their darkest nightmares are all starting to become real. The pyramid has to be behind it all somehow, but how can they save themselves from its influence?
An American family moves to Mexico to fabricate dolls, but their toy factory happens to be next to a Sanzian grave and the toys come into possession of an old, malicious spirit.
Ghoulies II picks up a short time after the first movie, a few of the little nasties stow away on an amusement park ride and bring big bucks to a dying fair. The creatures are mad after an attempt to kill them, so the creatures go on a rampage through the fairgrounds, ultimately leading to an explosive conclusion!